作者用气流阻断法测量了5名健康男性被试者的静态跨肺压力-肺容积曲线(P_t-V)曲线),并用指数函数V=V_(max)-A_0e~(KP_t)进行了曲线拟合,得以估计出静态肺弹性参数K=0.055±0.019(S)、C_L=0.23±0.05(S)。静态肺弹性参数与由深呼吸法得到的动态肺弹性参数K’=0.041±0.013(S)、C’_L=0.15±0.05(S)间的比较结果表明,两者间存在显著差异(P<0.01);但动、静态微分顺应性均随肺容积的增大而减小,减小速率分别为参数值K’、K。理论分析提示,动、静态肺弹性参数的差异与肺组织的应力松弛现象有关。 The authors measured the static trans-pulmonary pressure-pulmonary volume curve (P_t-V) curve of five healthy male subjects by airflow blockade) and performed a curve using the exponential function V = V max -A_0e ~ (KP_t) The static pulmonary elastic parameters K = 0.055 ± 0.019 (S) and C_L = 0.23 ± 0.05 (S) were estimated. The results of the static pulmonary elasticity parameters and the dynamic pulmonary elasticity parameters K ’= 0.041 ± 0.013 (S) and C’_L = 0.15 ± 0.05 (S) obtained by the deep breathing method showed that there was a significant difference (P <0.01 ), But dynamic and static differential compliance decreased with the increase of lung volume, and the decreasing rates were the parameter values ​​K ’and K respectively. Theoretical analysis suggests that the dynamic and static differences in the parameters of lung elasticity and stress relaxation of lung tissue.